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William Chan

Seattle, WA
4.0C year-end 2025
80 matches · 50W–30L · seasons 20192026
Bump probability
3.54.04.5lowhigh

Where this rating stands today. Taller means more likely. The dashed lines are the band edges, and the three shaded areas are the three percentages below.

3.82
estimated dynamic rating
Where the rating sits now, on 6 matches this season · USTA never publishes this number
0%
down to 3.5
99%
stay 4.0
1%
up to 4.5

A 4.0 runs from 3.51 to 4.00. This rating sits in the upper half of the band, and every match moves it.

Our estimate, not a USTA figure — scale measured at this point of 2023 on 2160 players. Graded publicly in December when USTA publishes year-end ratings. It moves when you play, and occasionally when we improve the model.

Where you rank
Seattle · 4.0
37 of 186
WA · 4.0
126 of 782

William is ranked among players at the same level in the same place, by our estimated dynamic rating — not the published level, which is the same for everyone in the band. Groups smaller than five are not ranked, because a placing out of two is noise dressed as standing.

Over timerating by season, and how you rank
Rating by season

William has been 4.0 for all 7 seasons on record, but moved a long way inside it — from the bottom of the band to the middle.

3.54.02019202120222023202420252026

The line is our estimate; the horizontal lines are level boundaries, so crossing one is a bump. Hollow points are years we inferred from the level played the following season, because USTA publishes a current rating but no history.

How you rank at your level
At 4.0, William has gone from the 95th to the 38th percentile of players at that level, 2019 to 2025.

Percentile compares the same level in the same season, by share of games won. Mixed is shown for context — USTA rules exclude it from your adult rating unless mixed is all you play.

By level3 levels played
4.0
73.7%
28W–10L · 57.2% of games
8.0
50%
2W–2L · 41.2% of games
8.0mixed
54.2%
13W–11L · 53.8% of games

Games won matters more than matches won — NTRP adjusts on margins.

Match history80 matches
L
Alex Yi
2026-03-13 · #1 Male Singles · 4.0
0.037below expectation — took 33% of games against 52% expected
6-3
W
John Suh / Kevin O'Keeffe
2026-02-07 · #1 Male Doubles · 4.0 · with Tomas San Miguel
+0.049better than expected — took 86% of games against 58% expected
6-1
L
Kevin O'Keeffe / Daniel Song
2026-01-31 · #1 Male Doubles · 4.0 · with Adam Myers
0.043below expectation — took 25% of games against 48% expected
6-2
W
Kareem Kamel / Nikhil Kagalwala
2026-01-18 · #1 Male Doubles · 4.0 · with Adam Myers
+0.001about as expected — took 60% of games against 58% expected
6-4
L
2025-10-12 · #2 Doubles · 8.0 · with Erin Hostetler
+0.000below expectation — took 48% of games against 54% expected
5-7, 6-4, 1-0
L
2025-09-21 · #2 Doubles · 8.0 · with Erin Hostetler
+0.000about as expected — took 47% of games against 51% expected
6-3, 3-6, 1-0
W
I-Shiun Kuo / Alex Hoang
2025-05-25 · #3 Doubles · 4.0 · with Andrew Dickson
0.007about as expected — took 50% of games against 54% expected
3-6, 7-5, 1-0
L
Yodae Lim / Matthew Cao
2025-05-11 · #1 Doubles · 4.0 · with Jeremy Janson
0.014below expectation — took 44% of games against 51% expected
6-2, 3-6, 1-0
L
Kentaro Aoki / YUTARO SAKAI
2025-04-19 · #1 Doubles · 4.0 · with Kevin Pham
0.008below expectation — took 32% of games against 39% expected
7-5, 6-1
L
Chris Pavlin / Grant Pomering
2025-04-05 · #2 Doubles · 4.0 · with Kevin Pham
+0.021better than expected — took 50% of games against 41% expected
6-4, 3-6, 1-0
L
Jonathan Newman / Scott McConnellchamps
2025-03-22 · #1 Male Doubles · with Tomas San Miguel
0.061below expectation — took 14% of games against 47% expected
6-1
L
Raymond Lam
2025-03-09 · #1 Male Singles · 4.0
0.063below expectation — took 33% of games against 61% expected
6-3
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Not affiliated with or endorsed by the USTA. Rating shown is the published USTA year-end figure; match data is from USTA TennisLink.